RKI Instruments  |  SKU: RKI01-72-RA-C

RKI GX-3R 4 Gas Confined Space Monitor 72-RA-C

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Now $476.00 Was $595.00
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RKI GX-3R 4 Gas Confined Space Monitor (ATEX/CSA approved) is the smallest, and lightest CS Gas Monitor and includes a 3-year warranty on the monitor and sensors. Weighing only 3.52 ounces, it clips comfortably within a worker's breathing zone. It simultaneously monitors and displays LEL combustibles, O2, CO, and H2S. The GX-3R utilizes a new generation of micro sensors. The LEL sensor has a unique design with two active filaments in one sensor to increase it’s resistance to silicone poisoning. If one filament gets poisoned the second filament takes over. The new O2 sensor is electrochemical with a 3 to 5 year life span. H2S and CO are now available in a combo micro sensor. Safety supervisors will appreciate the non-compliance indicator. The instrument flashes it’s 3 LED lights every 30 seconds

Applications: Personal monitoring, Confined spaces, Refineries/petrochemical, Utilities, Oil and Gas, Water/wastewater, Fire services, Construction

Key Features:

  • Smallest & lightest 4 gas monitor (2.2" W x 2.55" H x 1.02" D, 3.52 ounces)
  • Simultaneous detection of 4 gases (LEL, O2, H2S & CO)
  • Simple 2-button operation
  • Non-Compliance Indicator
  • Alarms: audible, visual, & vibration
  • 3 user adjustable alarm levels
  • Impact resistant body with removable rubber boot
  • Large LCD Auto-backlit display
  • 25 hours of operation (Lithium-ion battery)
  • Field replaceable sensors & filters
  • Water and dust resistant design, IP66/68
  • Stealth mode for law enforcement
  • 3-Year warranty on the monitor and sensors
  • Standard Accessories Included: Alligator clip, protective rubber boot, charger, and calibration adapter
  • ATEX/CSA Safety Approval
  • Updated version of the GX-2009 (Unlike the GX-2009, the GX-3R uses a 0.25 Regulator.)

Sensor Specifications: (Warranty is renewed for each sensor replaced)

Carbon Monoxide (CO)

  • Detection Range: 0 ~ 2,000 ppm (1 ppm)
  • ± 5% of reading or ± 2 ppm CO
  • Preset Alarms: 
    • 1st alarm: 25.0 ppm
    • 2nd alarm: 50.0 ppm
    • 3rd alarm: 1200.0 ppm
    • TWA alarm: 25.0 ppm
    • STEL alarm: 200.0 ppm
    • Over alarm: 2000.0 ppm

Hydrogen Sulfide (H2S)

  • Detection Range: 0 ~ 200.0 ppm (0.1 ppm)
  • Accuracy Statement: ± 5% of reading or ± 2 ppm H2S (whichever is greater)
  • Preset Alarms: 
    • 1st alarm: 5.0 ppm
    • 2nd alarm: 30.0 ppm
    • 3rd alarm: 100.0 ppm
    • TWA alarm: 1.0 ppm
    • STEL alarm: 5.0 ppm
    • Over alarm: 200.0 ppm

Combustible Gases (Methane as standard)

  • Detection Range: 0 ~ 100% LEL (1% LEL)
  • Accuracy Statement: ± 5% of reading or ± 2% LEL (whichever is greater)
  • Preset Alarms: 
    • 1st alarm: 10% LEL
    • 2nd alarm: 25% LEL
    • 3rd alarm: 50% LEL
    • Over alarm: 100% LEL

Oxygen (O2)

  • Detection Range: 0 ~ 40.0% Vol. (0.1%)
  • Accuracy Statement: ± 0.5% O2
  • Preset Alarms: 
    • Low 1 alarm: 19.5% Low
    • 2 alarm: 18.0%
    • High alarm: 23.5%
    • Over alarm: 40.0%

Remember to calibrate every three months and regularly perform bump tests.

Brochure:

Brochure

Specification Sheet:

Specification Sheet

Quick Reference guide:

Quick Reference guide

Manual:

Manual

Datalogging Manual:

Datalogging Manual

Optional Accessory: Downloading cable, USB / IrDA adapter, 0.25 Regulator

Part Numbers:
72-RA-C - Gas Monitor with 100-240 VAC charger

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The RKI GX-3R 4 Gas Confined Space Monitor 72-RA-C by RKI Instruments is a red and black handheld device equipped with micro sensors and a digital display that shows levels of CH₄, O₂, CO, and H₂S. Ideal for confined spaces, the screen indicates 0% LEL for CH₄, 0 ppm for CO and H₂S, and 20.9% for O₂. The buttons labeled 'AIR' and 'POWER MODE' are prominently featured.
RKI Instruments

RKI GX-3R 4 Gas Confined Space Monitor 72-RA-C

Now $476.00 Was $595.00

RKI GX-3R 4 Gas Confined Space Monitor (ATEX/CSA approved) is the smallest, and lightest CS Gas Monitor and includes a 3-year warranty on the monitor and sensors. Weighing only 3.52 ounces, it clips comfortably within a worker's breathing zone. It simultaneously monitors and displays LEL combustibles, O2, CO, and H2S. The GX-3R utilizes a new generation of micro sensors. The LEL sensor has a unique design with two active filaments in one sensor to increase it’s resistance to silicone poisoning. If one filament gets poisoned the second filament takes over. The new O2 sensor is electrochemical with a 3 to 5 year life span. H2S and CO are now available in a combo micro sensor. Safety supervisors will appreciate the non-compliance indicator. The instrument flashes it’s 3 LED lights every 30 seconds

Applications: Personal monitoring, Confined spaces, Refineries/petrochemical, Utilities, Oil and Gas, Water/wastewater, Fire services, Construction

Key Features:

Sensor Specifications: (Warranty is renewed for each sensor replaced)

Carbon Monoxide (CO)

Hydrogen Sulfide (H2S)

Combustible Gases (Methane as standard)

Oxygen (O2)

Remember to calibrate every three months and regularly perform bump tests.

Brochure:

Brochure

Specification Sheet:

Specification Sheet

Quick Reference guide:

Quick Reference guide

Manual:

Manual

Datalogging Manual:

Datalogging Manual

Optional Accessory: Downloading cable, USB / IrDA adapter, 0.25 Regulator

Part Numbers:
72-RA-C - Gas Monitor with 100-240 VAC charger

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